Description
The Ariston Microgenus pressure gauge 65100695 is a brand-new genuine replacement component for selected Ariston Microgenus, Microgenus HE, Microcombi, Microsystem, Eco and Excalibur boilers. It is supplied with a 12-month warranty and should only be ordered after confirming the appliance model, GC number, edition and serial-number range.
The pressure gauge displays the water pressure within the boiler’s sealed heating system, allowing the system pressure to be checked during operation, servicing and repressurisation. Installation should be completed by a suitably qualified Gas Safe registered engineer.
Product details
Brand: Ariston
Part type: Pressure gauge
MPN: 65100695
Condition: New
EAN / GTIN: 5411692480905
Warranty: 12 months
Boiler compatibility
Ariston Eco
Eco Combi 27 MFFI – GC No. 47-116-23
Eco System 27 RFFI – GC No. 41-116-08
Ariston Excalibur
Excalibur 100 – GC No. 47-116-31
Excalibur 80 – GC No. 47-116-30
Ariston Microcombi
Microcombi 23 MFFI Edition 1 (From Serial No. 2320018200001 To 2320033400001) – GC No. 47-116-16
Microcombi 23 MFFI Edition 2 (From Serial No. 2320033400001 To 2320101500001) – GC No. 47-116-16 ED 2
Microcombi 23 MFFI Edition 3 (From Serial No. 232010500001 To 2320209500001) – GC No. 47-116-16 ED 3
Microcombi 23 MFFI Edition 4 (From Serial No. 2320209500001) – GC No. 47-116-16 ED 4
Microcombi 27 MFFI Edition 1 Revision 1 (From Serial No. 232309500001 To 2320021400002) – GC No. 47-116-24 ED 1
Microcombi 27 MFFI Edition 1 (From Serial No. 232309500001 To 2320021400002) – GC No. 47-116-24
Ariston Microgenus 11
Microgenus 11 24 MFFI – GC No. 47-116-25
Microgenus 11 24 MFFI Edition 3 (From Serial No. 2320436400001) – GC No. 47-116-25 ED 3
Microgenus 11 28 MFFI – GC No. 47-116-26
Microgenus 11 28 MFFI Edition 3 (From Serial No. 2320436400001) – GC No. 47-116-26 ED 3
Microgenus 11 31 MFFI – GC No. 47-116-27
Microgenus 11 31 MFFI Edition 3 (From Serial No. 2320436400001) – GC No. 47-116-27 ED 3
Ariston Microgenus
Microgenus 23 MFFI Edition 1 (To Serial No. 2320005600001) – GC No. 47-116-14
Microgenus 23 MFFI Edition 2 (From Serial No. 2320005600001 To 2320021400002) – GC No. 47-116-14 ED 2
Microgenus 23 MFFI Edition 3 (From Serial No. 2320021400002 To 2320219000001) – GC No. 47-116-14 ED 3
Microgenus 23 MFFI Edition 4 (From Serial No. 2320219000001 To 2320409200001) – GC No. 47-116-14 ED 4
Microgenus 23 MFFI Edition 5 (From Serial No. 2320409200001) – GC No. 47-116-14 ED 5
Microgenus 27 MFFI Edition 1 (To Serial No. 2320005600001) – GC No. 47-116-15
Microgenus 27 MFFI Edition 2 (From Serial No. 2320005600001 To 2320021400002) – GC No. 47-116-15 ED 2
Microgenus 27 MFFI Edition 3 (From Serial No. 2320021400002 To 2320219000001) – GC No. 47-116-15 ED 3
Microgenus 27 MFFI Edition 4 (From Serial No. 2320219000001 To 2320409200001) – GC No. 47-116-15 ED 4
Microgenus 27 MFFI Edition 5 (From Serial No. 2320409200001) – GC No. 47-116-15 ED 5
Ariston Microgenus HE
Microgenus HE 24MFFI – GC No. 47-116-37
Microgenus HE 28MFFI – GC No. 47-116-38
Microgenus HE 32MFFI – GC No. 47-116-39
Ariston Microsystem 10 RFFI
Microsystem 10 RFFI Edition 1 (From Serial No. 2320021100001 To 2320024900001) – GC No. 41-116-04
Microsystem 10 RFFI Edition 2 Revision 1 (From Serial No. 2320101600001 To 2320106400001) – GC No. 41-116-04 ED 2
Microsystem 10 RFFI Edition 3 (From Serial No. 2320403600001) – GC No. 41-116-04 ED 3
Ariston Microsystem 15 RFFI
Microsystem 15 RFFI Edition 1 (From Serial No. 2320021100001 To 2320024900001) – GC No. 41-116-05
Microsystem 15 RFFI Edition 2 Revision 1 (From Serial No. 2320101600001 To 2320106400001) – GC No. 41-116-05 ED 2
Microsystem 15 RFFI Edition 3 (From Serial No. 2320403600001) – GC No. 41-116-05 ED 3
Ariston Microsystem 21 RFFI
Microsystem 21 RFFI Edition 1 – GC No. 41-116-06
Microsystem 21 RFFI Edition 2 – GC No. 41-116-06 ED 2
Microsystem 21 RFFI Edition 3 – GC No. 41-116-06 ED 3
Ariston Microsystem 28 RFFI
Microsystem 28 RFFI Edition 1 – GC No. 41-116-07
Microsystem 28 RFFI Edition 2 – GC No. 41-116-07 ED 2
Microsystem 28 RFFI Edition 3 – GC No. 41-116-07 ED 3
Delivery & Collection
Collection is available from our Newcastle showroom at Unit 5, Penn Street, Newcastle upon Tyne, NE4 7BG, usually on the same day, subject to stock availability. If the item is not in stock, collection is normally available the next working day. We also offer fast UK delivery through Royal Mail First Class or DPD Next Day, with most orders arriving within one to two working days. Boiler components should be installed by a suitably qualified Gas Safe registered engineer.
Warranty
This brand-new genuine Ariston boiler pressure gauge is supplied with a 12-month warranty. Warranty claims may be subject to inspection and confirmation that the component was correctly selected and professionally installed.
Returns
We accept returns within 30 days of delivery. The product must be unused, unfitted and returned in its original unopened packaging with all seals intact. We cannot accept returns for components that have been fitted, used, damaged or returned in an unsuitable condition. Please check the boiler model, GC number, edition, serial-number range and part number carefully before ordering.
If you need any help, our team is happy to assist. Please contact us by phone or WhatsApp chat.
Frequently asked questions
Does Ariston pressure gauge 65100695 fit Microgenus HE boilers?
Yes. This pressure gauge is confirmed for the Ariston Microgenus HE 24MFFI, 28MFFI and 32MFFI boilers with GC numbers 47-116-37, 47-116-38 and 47-116-39.
Why must I check the boiler edition and serial-number range?
Several compatible Microgenus, Microcombi and Microsystem boilers were produced in different editions. The correct component can depend on the appliance edition and serial-number range, even when the main boiler model name appears identical.
What symptoms may indicate a faulty boiler pressure gauge?
Possible signs include a gauge needle that remains fixed, gives an inconsistent reading, does not return correctly when system pressure changes or shows a reading that differs from professional test equipment. These symptoms should be checked before the gauge is replaced.
Does this pressure gauge fit Microcombi and Microsystem boilers?
Yes. Part number 65100695 fits the specific Microcombi 23 and 27 MFFI editions and Microsystem 10, 15, 21 and 28 RFFI editions shown in the compatibility list. The model, GC number, edition and serial number must all be checked.
Does the Ariston pressure gauge require professional installation?
Yes. Replacing the pressure gauge may require the boiler to be isolated, drained, refilled and checked for leaks and correct system pressure. Installation should be completed by a suitably qualified Gas Safe registered engineer.










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